 | Home > Puma (Tdci) > Puma pushing out coolant |
 
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| andy63 Member Since: 30 Jun 2023 Location: north east Posts: 589  
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Ahh that's still on my to do list.. I have a catch can to fit at some point..
when I said I thought the egr was responsible for the mess and carbon build up in the inlet side obviously the oil came from that side of the engine but I'm sure the exhaust gas just made it worse.. You are most probably aware that low pressure egr is now well established in the automotive industry..so regardless of load conditions on the engine there is pretty much always a flow of recirculated exhaust gas.. Anyway I have other matters to see to.. I had a warning light this morning..I'm hoping it's not the start of a load of bother..😫🫣👇  Click image to enlarge |
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17th Jan 2025 2:33pm |
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| Ianh Member Since: 17 Sep 2018 Location: Essex Posts: 2099
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Fuel filter, Tank pump, HP pump, VCV or fuel rail pressure sensor are areas to check.
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17th Jan 2025 4:50pm |
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| andy63 Member Since: 30 Jun 2023 Location: north east Posts: 589
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Cheers Ian.. I've had a quick look and got this. I've cleared the fault but I'm not holding my breath that it will stay away..😫 Click image to enlarge |
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17th Jan 2025 5:34pm |
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| Peterd Member Since: 17 Jan 2025 Location: Chichester Posts: 5  
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I have similar issue. Coolant loss through expansion tank. I removed the egr cooler which was found to be leaking. Replaced with a new cooler and valve. Still failing a co2 test so suspect HG is leaking as well
Question is what to do next. I am thinking replace with brand new engine. May sound overkill but at around £4k would surely be worth it. I am tempted to start stripping the engine to find the issue and attempt the repair with the worst case scenario being the new engine. Does anyone know if the HG repair can be done without de gassing the AC. If it does need to be de gassed and removed then I would want to do this before I start stripping as I can drive it short distances in its current state. |
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17th Jan 2025 7:36pm |
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| stichill99 Member Since: 16 Jul 2024 Location: Scottish Borders Posts: 10
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I would think you would not get away with out taking any air con pipes out the way, To take the cylinder head off you basically have to strip everything out the engine bay to get at all the nuts and bolts!
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17th Jan 2025 8:18pm |
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| Peterd Member Since: 17 Jan 2025 Location: Chichester Posts: 5
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That’s what I thought. More hoping someone would say otherwise.
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17th Jan 2025 8:24pm |
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| Ianh Member Since: 17 Sep 2018 Location: Essex Posts: 2099
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Unfortunately a leaking EGR cooler can cause the head gasket to fail, I suspect that’s what happened to you.
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17th Jan 2025 8:33pm |
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| stichill99 Member Since: 16 Jul 2024 Location: Scottish Borders Posts: 10
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When our egr cooler failed and the header tank was passing coolant under high pressure when we took off the cylinder head the gasket was in perfect condition!
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18th Jan 2025 3:35pm |
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| Ianh Member Since: 17 Sep 2018 Location: Essex Posts: 2099
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Unfortunately it’s hit and miss, some get lucky an No HG failure, some don’t.
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18th Jan 2025 8:13pm |
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| ickle Member Since: 22 Jul 2010 Location: South Vendee Posts: 1803  
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I put a new head on 12 months ago and had no issues with the air con, everything moved out of the way with room to spare.
HTH Keith |
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18th Jan 2025 8:45pm |
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| Peterd Member Since: 17 Jan 2025 Location: Chichester Posts: 5
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Ac has now been de gassed. After chatting to the guy at the garage that carried out the de gassing. He suggested using steel seal liquid head gasket repair. Not an option I really wanted to do but is there any harm in giving it a go. What is the worst that could happen.
For curiosity I would like to try. As far as I can see all I would have to do is drain and flush cooling system. Fill with plain water. Add chemical. Run to temperature plus 30mins at idle. Leave to cool. Drain system and re fill with coolant. |
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19th Jan 2025 7:48am |
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| Peterd Member Since: 17 Jan 2025 Location: Chichester Posts: 5
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Did you establish where the fault was |
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19th Jan 2025 7:59am |
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| andy63 Member Since: 30 Jun 2023 Location: north east Posts: 589
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I'll bet that I'll be saying what most folk will be thinking..
If you are going to do the job do it properly..🫣🤣 But I'd never say no don't use it.. Way back i had similar views on the cooling system fixes like radweld.. Can't remember exactly why I eventually tried it... (most probably cost and not been able to afford a new radiator ) drove me down that road and to my surprise the fix was good and ended up not been temporary but a permanent fix...👍🤣 So if I was i in the same position or on an expedition and it was a last resort I'd try the fix. Only then can you have a indication of its effectiveness but my instinct still takes me to my first comment above..👍 |
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19th Jan 2025 8:38am |
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| Peterd Member Since: 17 Jan 2025 Location: Chichester Posts: 5
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I am definitely with you on if a jobs worth doing.
I am going to do it to see if it works and then probably do the work anyway. |
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19th Jan 2025 8:46am |
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